Vcl.OleAuto.CreateOleObject
Delphi
function CreateOleObject(const ClassName: string): Variant;
C++
extern DELPHI_PACKAGE System::Variant __fastcall CreateOleObject(const System::UnicodeString ClassName);
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
function | public | Vcl.OleAuto.pas Vcl.OleAuto.hpp |
Vcl.OleAuto | Vcl.OleAuto |
Description
Instantiates an Automation object.
CreateOleObject creates a single uninitialized object of the class specified by the ClassName parameter. ClassName specifies the string representation of the Class ID (CLSID). CreateOleObject is used to create an object of a specified type when the CLSID is known and when the object is on a local or in-proc server. Only the objects that are not part of an aggregate are created using CreateOleObject.
Note: In Delphi code, CreateOleObject is called once to create each new single instance of a class. To create multiple instances of the same class, we recommend that you use a class factory.
Tip: As shown in the example, you can release the interface stored in the returned Variant by assigning the Unassigned constant to that Variant.